The full name of the United States of America is the United States of America. It was originally a British colony, and later became a powerful country due to various factors. The original inhabitants of North America were Indians. From the 16th to the 18th century, Western European countries that were carrying out primitive accumulation of capital successively invaded North America. By the middle of the eighteenth century, thirteen colonies had been established along the Atlantic coast of North America, and the colonies were relatively mature economically, culturally, and politically. However, there was a rift between the colonies and the United Kingdom, and the United Kingdom continued to adopt a high-handed policy against North America, which caused strong dissatisfaction among the residents of North America. From 1776 to 1783, thirteen states in North America won the Revolutionary War under the leadership of Washington. The United States was officially born, and successively formulated a series of decrees of democratic politics. Gradually become a completely independent national sovereign state.